Satement-1: if there is no external torque on a body about its centre of mass, then the velocity of the center of mass remains constant.
Statement-2: The linear momentum of an isolated system remains constant.
A. Statement-1 is true, Statement-2 is false
B. Statement-1 is true, Statement-2 is true, Statement-2 is the correct explanation of Statement-2
C. Statement-1 is true, Statement-2 is true, Statement-2 is not the correct explanation of Statement-2
D. Statement-1 is false, Statement-2 is true